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Since the child is B negative, the child is getting the B from the mother. The child must get the negative from both parents. From the father, the child must get either a B or an O to go along with the B from the mother. So, the father can be blood type A negative (only AO), AB negative, B negative (either BB or BO), or O negative.

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15y ago
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10y ago

We can not include Rh type since you do not give it for both parents. If mother is B she also carries O. Her type is BO. The father is AB. There is a chance of 1 in four that the infant's type will be AB, AO, BB or BO.

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Q: What are possible blood types of father if mom is blood type ab negative son is b negative?
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Related questions

Can a man with type B negative blood father a child with A positive blood if the mother has O negative?

No because it's not possible for those to blood types to creat O negative


Can o negative mother O positive father can give o negative baby?

Blood types are based on genetic contributions from both the father and mother. Short answer, it is possible.


What are blood types that are possible to have?

The blood types are A, B, AB and O. Rh positive or negative are also blood types possible. What blood type we will have is inherited from our parents.


If the mother has a negative blood and the father is b negative does that make the child ab negative?

No. If both parents have a negative blood type, the child will either have the mother's blood type,or father's blood type, or if one parent is A- and the other B- only then can a child be born AB-. However, if two people with negative blood types try to have a baby, that may be very difficult. Sterility usually runs on the negative blood types, but conceiving a child is not impossible for them.


If both your mother and father have negative blood types does that mean you will too?

no but there is a average chance you will :)


Bothe the mother and father have blood type O What are the possible blood types of the offspring?

O


My husband and I have o positive blood types is it possible for our children to have b negative blood types?

If you both have O+ blood then your offspring could only be O+.


If a Mother has A positive blood type Father has A negative blood type what type of blood will the baby have?

Negative blood types are the dominant gene, so it is more likely that the baby will have A- blood, but there is still a chance that it has A+.


If your father has type A blood can you have type O blood?

Yes, that is entirely possible. Your father could be AA or AO, meaning your possible blood types (depending on your mother's) are: A, B, AB, and O.


Can an A plus father and O plus mother produce an O minus baby?

No...The formula is like this.. The Rh blood types (+ and -) are separate from the ABO blood types. The only thing to say about them is that two - parents will always have - children; every other combination is possible. In other words O negative and A negative = negative baby What would be interesting is what the major ABO blood type would be. That I'm not getting into as I am not a geneticist.


Can two O positive blood types have a baby with A Negative?

Your question is incomplete, because you did not give the baby's blood type. If you just want to know if different blood types can have children together, the answer is yes. I can tell you that an O negative father and A negative mother can only have A negative or O negative children.


Can two o positive blood types have a o negative baby?

not possible but rarely can be so.